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We have developed a micro spectrometer with 64 pixel GaAs base n-i-dot-in-well-i-n photo detector linear array. The physical model has established by its current-voltage, capacitance-voltage and Capacitance to frequency relationship. The model could be easily integrated with the readout circuit for special readout design optimization to realize the wide wavelength range under different radiation (especially...
Multi-step analytical tests such as enzyme-linked immunosorbent assay (ELISA) require delivery of multiple fluids into a reaction zone and counting of incubation time at different steps. This paper presents a new type of paper-based magnetic valves that can count the time and turn on or off a fluidic flow accordingly, enabling timed fluid control in paper-based microfluidics. The timing function of...
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